Ateam Holdings Co., Ltd., an IT company, develops a range of businesses centered around web services, games, and e-commerce worldwide. The company plans, develops, and operates comparison and informational websites for the major life events that occur in daily lives; and develops services for corporations relating to digital customer attraction support. It also designs, develops, and operates games and tool applications in various genres with the core theme of connecting people. In addition, it plans, develops, and operates various EC sites that handle various products for providing a shopping experience. The company was formerly known as Ateam Inc. and changed its name to Ateam Holdings Co., Ltd. in April 2025. The company was incorporated in 2000 and is headquartered in Nagoya, Japan.